msm_dp_link...tatus_change(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 NAME 🌸

msm_dp_link_process_ds_port_status_change — it processes port status changes, bestie 💅 (yes that's the whole vibe, and honestly? iconic.)

So this is a page from the Kernel API Manual, section 9 — aka the kernel devs' group chat, but make it documentation. 🫶

✨ SYNOPSIS ✨

int msm_dp_link_process_ds_port_status_change (struct
msm_dp_link_private *link );

Like, that's the whole call. One arg, one int back. Lowkey elegant ngl. 🦋

🎀 ARGUMENTS 🎀

  • link — the Display Port Driver data 💖 this is the main character of the operation, it's giving "everything you need to know lives in here".

🔥 DESCRIPTION 🔥

Okay so here's the tea ☕: this function handles downstream port updates that are initiated by the sink. Not you. The sink. The sink is the one coming to you with news. 🙈

And if the downstream port status has changed? Then the EDID gets read via AUX. That's the move. That's the whole plot. No cap. ✨

The function will return 0 if a downstream port update has been processed — slay, we ate, we processed it 👑 — otherwise it will return -EINVAL. 💀 So like, 0 = good vibes, -EINVAL = the vibes did not pass the check, fr fr.

ngl the return value is doing a lot of storytelling here — 0 for "handled it", -EINVAL for "nah". Keep an eye on it. 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/msm/dp/dp_link.c — the sacred text, go read it, iykyk 📖

Like, that's the whole friend group right there. Go say hi. 💜

Alright bestie, that's the page — brought to you by the fine folks at ./drivers/gpu/drm/msm/dp 🌸, October 2026 energy 🎀, straight out of the Kernel API Manual, section 9. Periodt. ⭐

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